Year	Cases per 100,000
1990	26.03
1991	26.74
1992	27.49
1993	28.27
1994	29.07
1995	29.91
1996	31.27
1997	32.74
1998	34.3
1999	35.95
2000	37.73
2001	39.46
2002	41.31
2003	43.27
2004	45.37
2005	47.62
2006	48.8
2007	50
2008	51.26
2009	52.56
2010	53.92
2011	53.87
2012	53.83
2013	53.8
2014	53.78
2015	53.76
2016	53.77